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Home >> Kia >> 2004 >> Optima LX, 2.7 8 >> Repair and Diagnosis >> Steering >> Power Steering Systems >> Mechanical Power Steering System >> Service Adjustment Procedure >> Oil Pump Pressure Test

Oil Pump Pressure Test

  1. Disconnect the pressure hose from the oil pump, and then connect the special tool between the oil pump and pressure hose as shown in illustration.
  2. Bleed the air. Start the engine and turn the steering wheel several times so that the fluid temperature rises to approximately 50°C (122°F).
  3. Set the engine speed to 1,000 RPM.
  4. Fully close and then fully open the shut-off valve of the special tool and measure the fluid pressure to confirm that it is within the standard value range.

    Oil pump pressure [Standard value]

    Gauge hose valve closed : 80 kg/cm2 (0038 psi) or less

    Fig 1: Checking Oil Pump Pressure
    G00328223Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Be sure not to keep the shut-off valve on the pressure gauge closed for longer than ten seconds.
  5. Remove the special tools and then tighten the pressure hose to the specified torque.

    Tightening torque : 55-65 Nm (50-650 kg. cm)

  6. Bleed the system.
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